Self-closing hose cock or valve.



RALPH E. CHAPIN, OF BATAVIA, NEW YORK.

SELF-CLOSING Hose oooK on VALVE.

Specicaton of Letters Patent.

Application -led March 14, 1904:. Serial No, 198,018.

To @ZZ whom t Wfl/ay concern.-

Be it known that I, RALPH E. CHAPIN, a citizen of the United States,residing at Batavia, in the county of Genesee and State of New York,have invented new and useful Improvements in Self-Closing Hose Cocks orValves, ofy which the following is a specification.

This invention relates to a self-closing hose cock or valve moreespecially applicable to devices employed for spraying or distributingliquid insecticides on' trees, plants, and shrubbery. In such devicesthe liquid insecticide is commonly contained in a reservoir or tank,from which it is forced through a suitable hose and distributing-nozzlebythe pressure ofy air compressed in the reservoir or tank. The liquidis more or less expensive, and necessarily only a limited quantity canbe carried about in the device, so that it is highly desirable toprevent its waste while 1 the operator moves from one plant to anotheror shifts the nozzle to change the direction of the -spray from place toplace.

The object of the invention is to provide a self-closing cock or valvefor the hose or nozzle of simple and inexpensive construction, which islocated for convenient operation by the thumb or linger of the handholding the nozzle to permit the discharge of the liquid, and which isautomatically closed when released to shut olf the liquid and preventthe waste thereof, and which can be readily secured in open positionwhen desired to relieve the operator from the necessity of holding thecock or valve open.

In the accompanying drawings, Figure l is a longitudinal sectionalelevation of a hose cock or valve embodying the invention. Fig. 2 is atransverse section thereof, partly in plan, in line 2 2, Fig. l.

Like letters of reference refer to like parts in both iigures.

The body or barrel of the cock or valve is preferably formed in onepiece with a main longitudinal discharge tube or barrel A, a lateralintermediate portionB, and a tubular inlet portion or nipple C, which isparallel with but offset from the discharge-tube and is suitably shapedfor connection with a hose or pipe o. The discharge-tube and osetportion are hollow or provided With passages a respectively, in directconnection, and the latter passage connects with the passage of thenipple by a' short passage or port D, which is parallel andconcentricwith the bore of the nipple and is surrounded at its inlet Patentea'nec.12,'i9o5-f f end or inthe nipple withv an annular. valve seat or lip d.The end of the vdischarge-tube is screw-threaded at e for theattachmentofa nozzle E (shown by dotted lines) of anyisyni'table formfor producing the desired character of spray or jet of the liquid.

F represents a valve arranged on the inlet side of the valve-seat d andpreferably consisting of a disk, of leather or other suitable material,secured to the inner end of a valvestem f, which projects forwardly outof the ofset portion of the valve-body parallel with and alongside ofthe discharge-tube. The valvestem passes through the portD and is ofsmaller diameter than the same to permit the passage of the liquidthrough said port when the valve is olf of its seat. The valve-stempasses through a suitable stuliing-box consisting of a packing-gasket g,located in a cavity in the offset portion of the valve-body around thevalvestem, in which itis held and compressed around the valve-stem by atubular plug G, screwed into the cavity, which is internallyscrew-threaded for this purpose.

The valve-stem is provided at its outer end with asuitableoperating-head or enlargement H, and the valve is normally heldto its seat to shut off the liquid byacoil-spring 7L, located in anannular pocket in the plug of the stuffing-box and bearing at its outerend against the head of the valve-stem.

The head of the valve-stem is preferably of segmental circular shape, asshown in Fig. 2, or is eccentrically secured to the stem, and thedischarge-tube is provided on the side adjacent to the valve-stem with anotch I, with which the head of the valve-stem can be engaged when thevalve is opened to hold it open by turning said head partially around,as indicated by dotted lines in Fig. 2. Instead of the notch any othersuitable stop on the discharge-tube Would accomplish the same result.

The location of the valve-operating stem and head is such that theoperator can hold the device in the hand in a natural easy position,with his thumb on the head of the valvestem, and open the valve asdesired by a slight pressure on the head. As soon as the pressure isrelieved the valve will be closed by its spring and will be held to itsseat to shut off the liquid by the pressure thereof on the valve-disk,assisted by the valve-spring. The head of the valve-stem can also beeasily turned to engage the head in the notch of the discharge-tube tohold the valve open bya twisting movement of the thumb. The spring IOOIIO

h not only seats the valve, but being compressed When the valve isopened it exerts its pressure to hold the head ofthe valve-stem againstthe stop and prevent the accidental disengagement of the head inhandling the device. The device is thus exceedingly simple andconvenient in use, being a great improvement over a construction inwhich the-nozzle must be held in one hand and the valve operated by theother hand. v

While the device is especially adapted for use in connection with liquidinsecticide sprayers, it is not necessarily limited to such application.

I claim as my inventionl. The combination of a valve-body having aninlet-nipple for attachment to a hose or the like, and a discharge-tubewhich is-substantially parallel with and offset relative to said nipple,a stop on one side of said dischargetube, a valve in said valve-body, avalve-steml Which is slidable longitudinally in said valvebody andextends out of the same beside said discharge-tube, a head carried bythe outer end of said valve-stem for moving the latter to open the valveand Which-is adapted to be moved into engagement with the stop on saiddischarge-tube to hold said valve open, and aA spring for seating saidvalve to close the passage of the body and holding'said head againstsaid stop, substantially as set forth.

2. The combination of a valve-body having a nipple for attachment to ahose or the like, and a discharge-tube Which is substantially parallelwith and is offset relative to said nipple and is provided with a notchin one side, a valve-stem Which is slidably mounted in said Valve-bodyandextends out of the same parallel with and ybeside said dischargetube,a valve carried by the inner end of said valve-stem and controlling theliquidvpassage through said body, a head on the outer end of said sternwhich is movable longitudinally beside said discharge-tube and is'adapted `to` be turned into engagement With said notch in thedischarge-tube to hold the valve open, and a spring for seating saidvalve, substantially asset forth.

l/Vitness my hand this 5th day of March, 1904.

RALPH E. QHAPIN.

VVitnesses ALICE H. DAY,

W. G. PECK, LAURA M. KEEHN.

